Cached repository

CachedRepository.php

<?php

namespace Tvision\Bundle\BookingCoreBundle\Repository;

/**
 *
 * usage    
 * Class MyRepository extends CachedRepository
 *   $query->setMaxResults(1);
 *   $this->setCache($query, __METHOD__);
 */
use Doctrine\ORM\EntityRepository;
use Doctrine\ORM\AbstractQuery;

abstract class CachedRepository extends EntityRepository
{
    CONST DEFAULT_LIFETIME = 240;

    public function setCache(AbstractQuery $query, $prefix, $lifetime = self::DEFAULT_LIFETIME)
    {
        $key = serialize($query->getParameters());
        $query->useResultCache(true, $lifetime , $prefix.$key);
        $query->useQueryCache(true);
    }

}